|Publication number||US4704017 A|
|Application number||US 06/778,947|
|Publication date||Nov 3, 1987|
|Filing date||Sep 23, 1985|
|Priority date||Apr 16, 1984|
|Publication number||06778947, 778947, US 4704017 A, US 4704017A, US-A-4704017, US4704017 A, US4704017A|
|Inventors||Julius Z. Knapp|
|Original Assignee||Schering Corporation|
|Export Citation||BiBTeX, EndNote, RefMan|
|Patent Citations (10), Referenced by (93), Classifications (10), Legal Events (9)|
|External Links: USPTO, USPTO Assignment, Espacenet|
This is a continuation-in-part of U.S. application Ser. No. 600,860, filed Apr. 16, 1984, now U.S. Pat. No. 4,582,402, and a continuation-in-part of U.S. application Ser. No. 628,868, filed July 9, 1984, now abandoned.
This invention relates to a process for manufacturing colored contact lenses. More specifically it relates to a process for manufacturing contact lenses which contain a sufficient amount of added colorant to effect a change in the tint or color of the wearers eye while at the same time permitting visualization of the natural anatomy of the iris. The process produces lenses which do not significantly decrease the oxygen permeability of the uncolored contact lens. The invention also relates to colored contact lenses produced by the process.
Colored lenses currently on the market contain a tint throughout the entire section of the lens that covers the iris. While such lenses are capable of enhancing existing eye color or changing the color of light-colored eyes, they are not capable of causing fundamental color changes, for example, from dark brown to light blue.
Wichterle, in U.S. Pat. No. 3,679,504, dated July 25, 1972, discloses a contact lens having an opaque colorant covering the entire iris. While Wichterle's lenses are capable of causing a fundamental color change, the result will be an unnatural appearance unless a pattern in the opaque colorant is very artisticallly drawn or reproduced by expensive photographic means. This is so because the natural appearance of the iris is not a simple solid color, but a structure comprising many shapes and different colors. Moreover, Wichterle's opaque pattern reduces the amount of oxygen transmitted through the lens to the extent that the entire iris section is covered by the opaque colorant.
Urbach, in U.S. Pat. D. 211,757 dated July 23, 1968, discloses a contact lens with a portion of the iris section covered by an ornamental design. Substantial color change cannot be obtained by Urbach because only a portion of the iris is covered by the design.
The present invention is based on the surprising discovery that a colored contact lens capable of effecting a substantial color change of the eye may be produced by depositing a intermittant pattern of colorant over the entire iris portion of the lens. The colorant should cover at least about 10 percent of the iris portion of the lens surface and may cover a substantially greater portion of the lens surface provided only that a sufficient portion of the iris portion of the lens surface is not colored to permit visualization of the iris, thereby providing a natural appearance. It is possible to actually cause a fundamental color change (e.g., from dark brown to light blue) while still allowing visualization of the structure of the iris.
One aspect of the invention comprises a contact lens having a transparent pupil section, an iris section surrounding such pupil section, and an opaque colorant deposited intermittently over the entire iris section, leaving a substantial portion of the surface of the iris section of the lens uncolored. The size and spacing of the elements of the pattern (e.g. dots) should be such that the pattern is not visible to the naked eye when viewed from a distance of 5 feet by a person having normal 20--20 vision, i.e. the ordinary viewer.
FIG. 1 is a front view of a contact lens in accordance with the invention.
FIG. 2 is an enlarged view of a dot pattern that may be deposited over the iris section of the lens of FIG. 1.
FIGS. 3 and 4 illustrate alternate dot patterns.
FIG. 5 illustrates a plate that may be used for making lenses in accordance with the invention.
Colored contact lenses in accordance with the invention are shaped like conventional contact lenses, i.e., they have a concave rear surface adapted to be worn against the cornea and a convex front surface. FIG. 1 is a front view of such a lens. Lens 10 has a transparent pupil section 11 and an iris section 12 surrounding the pupil section. These sections cover corresponding parts of the eye of the wearer. Pupil section 11 and iris section 12 may have Radi r1 and r2 of about 2.5 and 4.5 mm. respectively. If the lens is constructed of a hard material, such as polymethyl methacrylate, only the iris and pupil sections are usually present. However, if the lens is made of hydrophilic material, there is usually a transparent peripheral section 14 surrounding the iris section 12 having radius r3, of, for example, about 7.25 mm.
Lenses manufactured in accordance with the present invention allow the structure of the iris to be seen, yet the pattern provides enough covering so that the iris of the wearer's eye appears to be the color of the lenses. To achieve the desired coloring effect, a colorant is deposited intermittantly over the entire iris section, shown shaded in FIG. 1. The interstices of the pattern are left uncolored. The pattern of deposited colorant may be regular or irregular and the shape of the deposits may vary widely provided only that within any reasonably sized portion of the iris section the colorant covers at least about 10 percent, usually at least about 20 percent, and preferably at least about 30 percent of the surface of the iris section while leaving a sufficient portion of the iris section surface uncolored to permit visualization of the natural anatomy of the iris. The colored portion of the iris section may be as much as about 80 percent, but is usually not more than 50 percent and preferably not more than about 40 percent of the iris section surface.
FIG. 2 illustrates a preferred pattern. Dots 15 are arranged so that their centers 16 form equilateral triangles. Each dot has a diameter d of about 0.1 mm. Preferably, the spacings s between the centers of the dots is about 0.13 mm. The dot size and spacing should be such that at least about 10 percent of the surface area of the iris section is covered by the dots, more preferably at least about 30 percent. The uncovered portion 17 of the iris section, i.e., the portion of the iris section within the interstices of the pattern, is left uncolored. The size and spacing of the elements of the pattern (e.g. dots) should be such that the pattern is not visible, i.e., the colored portion looks continuous, when seen by a person looking at the wearer from normal viewing distance. The dots may contain varying amounts of pigment and may be opaque or translucent, depending on the degree of pigmentation.
FIGS. 3 and 4 show examples of alternative dot patterns. In FIG. 3 the dots are arranged so that their centers form squares. In FIG. 5 the dots are hexagonally shaped. The shape and arrangement of the dots is not critical, provided that there are enough dots to achieve the desired coloring and enough space between the dots so that the structure of the iris is visible. To provide a more natural look, it has been found advantageous to vary the size, shape, opacity and/or density of the colorant spots over local areas of various size on the iris section of the lens. In particular, it is preferred to decrease the density of coverage near the inner and outer edges of the iris section.
The process of the present invention for making colored contact lenses is as follows. A transparent contact lens comprising at least a pupil section 11 and an iris section 12 surrounding the pupil section is provided.
If the lens is constructed of a hydrophilic material, it also has a peripheral section 14 surrounding iris section 12. For hydrophilic material, the steps described below are performed with the material in an unhydrated state. Preferred hydrophilic materials are disclosed by Loshaek in U.S. Pat. No. 4,405,773, incorporated herein by reference.
The colored pattern may be deposited onto iris section 12 of the lens in any manner. The currently preferred method is by offset pad printing, described below in some detail.
A plate 18 as shown in FIG. 5 is prepared having flat surface 19 and circular depressions 20 corresponding to the desired dot pattern. To make the pattern shown in FIG. 2, each depression 20 has a diameter of 0.1 mm. and a depth of 0.013 mm. The depressions are arranged to cover an annular shape corresponding to that of the iris section of the lens.
The plate may be made by a technique that is well known for making integrated analog or digital circuits. First a pattern about 100 times as large as the desired pattern is prepared. Next the pattern is reduced using well known photographic techiques to a pattern of the exact desired size having the portion to be colored darker than the remaining area. Flat surface 19 is covered by a photo resist material which becomes water insoluble when exposed to light. The photo resist material is covered with the pattern and exposed to light. The water soluble (darker) portion of the photo resist pattern is removed by washing with water and the resulting plate is etched to the required depth. Then the remainder of the photo resist material is mechanically removed.
Colorant, comprising a pigment and a binder or carrier for the pigment is deposited on flat surface 19 of the plate and scraped across the pattern with a doctor blade. This causes depressions 20 to be filled with ink while removing excess ink from flat surface 19. The colorant may be more or less opaque depending on the degree of color change desired. The opacity may be varied by modifying the proportion of pigment to binder in the colorant. It will be recognized that a desired affect may be obtained using a highly opaque colorant or by having a somewhat less opaque colorant and covering a greater portion of the iris section surface.
A pad made of silicon rubber, impregnated with silicon oil for easy release, is pressed against the pattern, removing ink from depressions 20. The ink on the pad is allowed to dry slightly to improve tackiness, then pressed against the front surface of the contact lens, depositing the ink in the desired pattern over the iris section. Of course the pad must have enough flexibility to deform to fit over the convex front surface of the lens. For a more natural effect, the printing step may be repeated one or more times using different patterns in different colors, since upon close examination, the iris's of many persons are found to contain more than one color. The printed pattern need not be absolutely uniform, allowing for enhancement of the fine structure of the iris.
Next the deposited pattern is treated to render it resistant to removal from the lens under exposure to the occular fluids that the lens will encounter when placed in the eye. The exact method of preventing removal depends on the material of construction of the lens and the pattern. Mere air drying or heating the lens may suffice. For hydrophilic lenses, the techniques for coating the opaque pattern described in Wichterle, U.S. Pat. No. 3,679,504 (incorporated herein by reference), may be used.
It can be seen that the present invention provides lenses capable of coloring the wearer's iris, while allowing visualization of the fine structure thereof. The invention has several advantages over prior art techniques:
1. A fundamental color change is possible without excessive interference with the oxygen transmissibility of the lens.
2. A natural appearance is achieved despite fundamental color change, because the structure of the iris is visible.
3. Because the pattern leaves a substantial portion of the iris uncoated, a coating over the pattern adheres better.
4. The pattern appears continuous when viewed by an onlooker.
|Cited Patent||Filing date||Publication date||Applicant||Title|
|US3536386 *||Oct 27, 1967||Oct 27, 1970||Morris Spivack||Contact lens with simulated iris|
|US3679504 *||Mar 26, 1969||Jul 25, 1972||Ceskoslovenska Akademie Ved||Method of forming color effects in hydrogel contact lenses and ophthalmic prostheses|
|US3712718 *||Oct 23, 1970||Jan 23, 1973||J Legrand||Corneal contact lens|
|US4460523 *||Mar 14, 1983||Jul 17, 1984||Neefe Charles W||Method of making cosmetic contact lenses|
|US4472327 *||Jan 31, 1983||Sep 18, 1984||Neefe Charles W||Method of making hydrogel cosmetic contact lenses|
|US4582402 *||Apr 16, 1984||Apr 15, 1986||Schering Corporation||Color-imparting contact lenses|
|USD211757||Feb 13, 1967||Jul 23, 1968||Contact lens or similar article|
|CA710230A *||May 25, 1965||Alvido R Rich||Surface tinted contact lenses|
|CA815956A *||Jun 24, 1969||Ceskoslovenska Akademie Ved||Method of production of coloured contact lenses and eye protheses|
|CA1091507A *||Oct 6, 1978||Dec 16, 1980||Hoya Lens Corp||Method of printing soft contact lenses|
|Citing Patent||Filing date||Publication date||Applicant||Title|
|US4857072 *||Nov 24, 1987||Aug 15, 1989||Schering Corporation||Hydrophilic colored contact lenses|
|US4889421 *||Sep 30, 1988||Dec 26, 1989||Cohen Allen L||Contact lens with cosmetic pattern|
|US4923480 *||Sep 21, 1987||May 8, 1990||Allergan, Inc.||Opaque tinting of contact lenses with random positions of color depth|
|US4963159 *||Jul 11, 1989||Oct 16, 1990||Schering Corporation||Hydrophilic colored contact lens|
|US5018849 *||Nov 16, 1988||May 28, 1991||Ciba-Geigy Corporation||Colored contact lens and methods of making the same|
|US5106182 *||Sep 24, 1990||Apr 21, 1992||Briggs Charles R||Laminated cosmetic contact lens and method of making same|
|US5120121 *||Mar 28, 1989||Jun 9, 1992||Allergan, Inc.||Colored lens|
|US5160463 *||Jul 18, 1991||Nov 3, 1992||Pilkington Visioncare, Inc.||Method of manufacturing a contact lens|
|US5302978 *||Oct 21, 1991||Apr 12, 1994||Pilkington Visioncare, Inc.||Contact lens|
|US5352245 *||Nov 20, 1992||Oct 4, 1994||Ciba-Geigy Corporation||Process for tinting contact lens|
|US5757458 *||Sep 30, 1996||May 26, 1998||Pilkington Barnes Hind, Inc.||Annular mask contact lenses|
|US5786883 *||Sep 13, 1993||Jul 28, 1998||Pilkington Barnes Hind, Inc.||Annular mask contact lenses|
|US5864379 *||Sep 27, 1996||Jan 26, 1999||Dunn; Stephen A.||Contact lens and process for fitting|
|US6284161||Oct 26, 1993||Sep 4, 2001||Pbh, Inc.||Colored contact lenses and method of making same|
|US6315410 *||Oct 25, 2000||Nov 13, 2001||Praful Doshi||Tinted lenses and methods of manufacture|
|US6488375||Oct 28, 1999||Dec 3, 2002||Ocular Sciences, Inc.||Tinted contact lens and method for making same|
|US6488376||Oct 4, 2000||Dec 3, 2002||Ocular Sciences, Inc.||Tinted contact lens and method for making same|
|US6494575||Apr 11, 1995||Dec 17, 2002||Wesley-Jessen Corporation||Colored contact lens having very natural appearance|
|US6523953||Oct 1, 2001||Feb 25, 2003||Novartis Ag||Colored contact lens having very natural appearance|
|US6540353||Dec 16, 1998||Apr 1, 2003||Polyvue Technologies, Inc.||Contact lens and process for fitting|
|US6634747||Jun 7, 2000||Oct 21, 2003||Novartis Ag||Sample indicator lens|
|US6655804||Aug 21, 2001||Dec 2, 2003||Daniel G. Streibig||Colored contact lens and method of making same|
|US6733126||Jun 29, 2001||May 11, 2004||Daniel G. Streibig||Colored contact lens and method of making same|
|US6767097||Mar 29, 2001||Jul 27, 2004||Daniel G. Streibig||Colored contact lens and method of making same|
|US6770324 *||Apr 6, 2001||Aug 3, 2004||Kennedy Acquisition, Inc.||Method of forming a non-uniform, protective coating on a flexible substrate|
|US6786597||Oct 10, 2002||Sep 7, 2004||Ocular Sciences, Inc.||Tinted contact lens and method for making same|
|US6808262||Jun 14, 2001||Oct 26, 2004||Novartis Ag||Multifocal contact lens with aspheric surface|
|US6824267||Aug 27, 2002||Nov 30, 2004||Ocular Sciences, Inc.||Tinted contact lens and method for making same|
|US6827440||Jan 2, 2001||Dec 7, 2004||Wesley Jessen Company||Colored contact lens with a more natural appearance|
|US6834955||Sep 7, 2001||Dec 28, 2004||Praful Doshi||Tinted lenses and methods of manufacture|
|US6880932||Apr 23, 2002||Apr 19, 2005||Praful Doshi||Tinted lenses and methods of manufacture|
|US6896369||Dec 2, 2003||May 24, 2005||Johnson & Johnson Vision Care, Inc.||Colored contact lens|
|US6929367||Jan 2, 2003||Aug 16, 2005||Novartis Ag||Colored contact lens having very natural appearance|
|US6948817||Jul 23, 2004||Sep 27, 2005||Streibig Daniel G||Colored contact lens and method of making same|
|US7048375||Oct 6, 2003||May 23, 2006||Praful Doshi||Tinted lenses and methods of manufacture|
|US7172286||May 20, 2005||Feb 6, 2007||Johnson & Johnson Vision Care, Inc.||Colored contact lens|
|US7210778||Aug 6, 2004||May 1, 2007||Wesley Jessen Corporation||Colored contact lens with a more natural appearance|
|US7213918||Aug 31, 2005||May 8, 2007||Novartis Ag||Method for making colored silicone hydrogel contact lenses|
|US7255438||Sep 14, 2005||Aug 14, 2007||Novartis Ag||Pad transfer printing method for making colored contact lenses|
|US7267846||Oct 6, 2004||Sep 11, 2007||Praful Doshi||Tinted lenses and methods of manufacture|
|US7296891||May 11, 2006||Nov 20, 2007||Johnson & Johnson Vision Care, Inc.||Colored contact lens|
|US7354959||Oct 12, 2005||Apr 8, 2008||Novartis Ag||Water-based inks for hydrogel lenses|
|US7438412||Apr 18, 2007||Oct 21, 2008||Novartis Ag||Colored contact lens with a more natural appearance|
|US7549742||Jul 22, 2005||Jun 23, 2009||Praful Doshi||Tinted lenses and methods of manufacture|
|US7550519||Apr 20, 2005||Jun 23, 2009||Novartis Ag||Curable colored inks for making colored silicone hydrogel lenses|
|US7837323||Nov 23, 2010||Novartis Ag||Colored contact lens with a more natural appearance|
|US7972681||Jul 5, 2011||Avery Dennison Corporation||Textured screen-printed laminates|
|US8147728||Mar 30, 2005||Apr 3, 2012||Novartis Ag||Pad transfer printing of silicone hydrogel lenses using colored ink|
|US8399607||Mar 19, 2013||Novartis Ag||Pad transfer printing method for making colored contact lenses|
|US8524800||Dec 12, 2007||Sep 3, 2013||Novartis Ag||Actinically curable silicone hydrogel copolymers and uses thereof|
|US8622543||May 13, 2009||Jan 7, 2014||Novartis Ag||Curable colored inks for making colored silicone hydrogel lenses|
|US8721945||Aug 1, 2013||May 13, 2014||Novartis Ag||Actinically curable silicone hydrogel copolymers and uses thereof|
|US8770747||Dec 13, 2011||Jul 8, 2014||Novartis Ag||Colored contact lens|
|US8915591||Jun 3, 2014||Dec 23, 2014||Novartis Ag||Colored contact lens|
|US8920873||Feb 24, 2012||Dec 30, 2014||Novartis Ag||Colored ink for pad transfer printing of silicone hydrogel lenses|
|US9039173||Jul 20, 2011||May 26, 2015||Novartis Ag||Colored contact lenses and method of making the same|
|US9205608||Dec 24, 2012||Dec 8, 2015||Novartis Ag||Contact lenses with identifying mark|
|US9310625||Apr 22, 2015||Apr 12, 2016||Novartis Ag||Colored contact lenses and method of making the same|
|US9346194||Dec 13, 2012||May 24, 2016||Novartis Ag||Colored contact lenses and method of making the same|
|US20030025873 *||Jan 2, 2001||Feb 6, 2003||Ocampo Gerardo J.||Colored contact lens with a more natural appearance|
|US20030156249 *||Jan 2, 2003||Aug 21, 2003||Jahnke Richard L.||Colored contact lens having very natural appearance|
|US20030165015 *||Nov 27, 2002||Sep 4, 2003||Ocular Sciences, Inc.||Coated contact lenses and methods for making same|
|US20030169401 *||Mar 31, 2003||Sep 11, 2003||Ocampo Gerardo J.||Colored contact lens with a more natural appearance|
|US20040109132 *||Dec 2, 2003||Jun 10, 2004||Strebig Daniel G.||Colored contact lens|
|US20040223117 *||Jun 16, 2004||Nov 11, 2004||Ocular Sciences, Inc.||Tinted contact lens and method for making same|
|US20040229042 *||Jun 22, 2004||Nov 18, 2004||Hooker Michael A.||Non-uniform, protective coating on a flexible substrate|
|US20050128433 *||Jan 27, 2005||Jun 16, 2005||Jahnke Richard L.||Colored contact lens having very natural appearance|
|US20050191470 *||Jan 6, 2005||Sep 1, 2005||Avery Dennison Corporation||Textured screen-printed laminates|
|US20050213028 *||May 20, 2005||Sep 29, 2005||Strebig Daniel G||Colored contact lens|
|US20050218536 *||Mar 30, 2005||Oct 6, 2005||Quinn Michael H||Colored ink for pad transfer printing of silicone hydrogel lenses|
|US20050237483 *||Apr 20, 2005||Oct 27, 2005||Phelan John C||Curable colored inks for making colored silicone hydrogel lenses|
|US20060055882 *||Aug 31, 2005||Mar 16, 2006||Phelan John C||Method for making colored silicone hydrogel contact lenses|
|US20060065138 *||Sep 14, 2005||Mar 30, 2006||Tucker Robert C||Pad printing method for making colored contact lenses|
|US20060077341 *||Sep 14, 2005||Apr 13, 2006||Atkins Barry L||Pad transfer printing method for making colored contact lenses|
|US20060203191 *||May 11, 2006||Sep 14, 2006||Johnson & Johnson Vision Care, Inc.||Colored contact lens|
|US20070027228 *||Oct 12, 2005||Feb 1, 2007||Tucker Robert C||Water-based inks for hydrogel lenses|
|US20080143003 *||Dec 12, 2007||Jun 19, 2008||John Christopher Phelan||Actinically curable silicone hydrogel copolymers and uses thereof|
|US20090046243 *||Sep 18, 2008||Feb 19, 2009||Novartis Ag||Colored contact lens with a more natural appearance|
|US20090047477 *||Jul 5, 2006||Feb 19, 2009||Roys John E||Textured Screen-Printed Laminates|
|US20110069276 *||Sep 21, 2010||Mar 24, 2011||Robert Carey Tucker||Colored contact lens based on amorphous images|
|US20110149235 *||Dec 15, 2010||Jun 23, 2011||April Jr Jimmie E||Pad transfer printing method for making colored contact lenses|
|EP0953163A2 *||Dec 17, 1997||Nov 3, 1999||Wesley-Jessen Corporation||Method of forming colored contact lens having very natural appearance and product made thereby|
|EP2187243A1||Mar 31, 2005||May 19, 2010||Novartis AG||Colored ink for pad transfer printing of silicone hydrogel lenses|
|WO1990003592A1 *||Sep 28, 1989||Apr 5, 1990||Cohen Allen L||Contact lens with cosmetic pattern|
|WO2001040846A2 *||Oct 23, 2000||Jun 7, 2001||Praful Doshi||Tinted lenses and methods of manufacture|
|WO2001040846A3 *||Oct 23, 2000||Oct 25, 2001||Praful Doshi||Tinted lenses and methods of manufacture|
|WO2002023254A1 *||Sep 17, 2001||Mar 21, 2002||Cygen Industries, Llc||Method for ornamenting contact lenses|
|WO2005102675A2||Apr 20, 2005||Nov 3, 2005||Novartis Ag||Curable colored inks for making colored silicone hydrogel lenses|
|WO2012013549A1||Jul 20, 2011||Feb 2, 2012||Novartis Ag||Colored contact lenses and method of making the same|
|WO2012082710A1||Dec 13, 2011||Jun 21, 2012||Novartis Ag||Colored contact lens|
|WO2013101481A1||Dec 13, 2012||Jul 4, 2013||Novartis Ag||Method of making colored contact lenses|
|WO2013106196A1||Dec 24, 2012||Jul 18, 2013||Novartis Ag||Method of making contact lenses with identifying mark|
|WO2015134449A1||Mar 3, 2015||Sep 11, 2015||Novartis Ag||Method for automatic inspection of contact lenses|
|U.S. Classification||351/159.24, 8/507, 351/159.74|
|International Classification||B29D11/00, G02C7/04|
|Cooperative Classification||B29D11/00903, B29K2995/0025, G02C7/046|
|European Classification||B29D11/00K6B, G02C7/04C|
|Feb 27, 1986||AS||Assignment|
Owner name: SCHERING CORPORATION, GALLOPING HILL ROAD, KENILWO
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:KNAPP, JULIUS Z.;REEL/FRAME:004512/0812
Effective date: 19850919
|Apr 10, 1991||FPAY||Fee payment|
Year of fee payment: 4
|Apr 10, 1995||FPAY||Fee payment|
Year of fee payment: 8
|Jun 29, 1995||AS||Assignment|
Owner name: SCHERING CORPORATION, NEW JERSEY
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:WESLEY-JESSEN CORPORATION;REEL/FRAME:007521/0875
Effective date: 19950627
|Jul 27, 1995||AS||Assignment|
Owner name: WJ ACQUISITION CORP., ILLINOIS
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:SCHERING CORPORATION AND ITS WHOLLY-OWNED SUBIDIARY WESLEY-JESSEN CORPORATION;REEL/FRAME:007558/0256
Effective date: 19950628
|Aug 9, 1995||AS||Assignment|
Owner name: WESLEY-JESSEN CORPORATION, ILLINOIS
Free format text: CHANGE OF NAME;ASSIGNOR:WU-ACQUISITION CORP.;REEL/FRAME:007596/0466
Effective date: 19950630
|Dec 2, 1996||AS||Assignment|
Owner name: BANKERS TRUST COMPANY, NEW YORK
Free format text: GRANT OF SECURITY INTEREST;ASSIGNOR:WESLEY-JESSEN CORPORATION;REEL/FRAME:008251/0182
Effective date: 19961002
|Mar 8, 1999||FPAY||Fee payment|
Year of fee payment: 12
|Mar 31, 2003||AS||Assignment|
Owner name: NOVARTIS AG, SWITZERLAND
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:WESLEY JESSEN CORPORATION;REEL/FRAME:013852/0622
Effective date: 20021218